Which of these organisms skeleton also acts as a skin

A. Flower

B. Elephant

C. Tree

D. Crab

What would happen if a cell didn't have a cytoskeleton

How have antibiotics changed the quality of life for humans over the past century

Which group of hormones is responsible for the growth of the uterus, breast, and vagina during puberty

Which of the following correctly identifies the connective tissue that connects muscles to bone, allowing a muscle to contract and pull on a bone in a way that makes the bone move? thick filaments ligament tendon periosteum

What is produced when the outer core of a star explodes after the core collapses

What brings greater concentration of dissolved nutrients to the ocean floor?

The power was off last night, and the yeast cultures in your incubator cooled down from 25 degrees to 20 degrees centigrade in temperature. to your great relief, you find that the yeast cells did not die.

Which of the following is a way that human modification of limiting factors causes unbalance in ecosystems? a. habitat loss b. pollution c. climate changes d. all of the above

What form is carbon in the atmosphere?

Both sneezing and coughing are examples of protective reflexes triggered by irritation. sneezing and coughing both involve a disruption in respiration. what is the formal name for the period when respiration is suspended